Sard and Variscite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.58-2.63
  
2.42-2.58
  
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
  
Conchoidal, Splintery, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle
  
Cleavage
Not Available
  
[010] perfect
  
Mohs Hardness
6.5-7
  
4-5
  
Chemical Composition
SiO 2Ulrich Henn and Claudio C.
  
AlPO4 · 2(H2O)
  
Sard and Variscite Chemical Formula
While comparing Sard and Variscite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Sard and Variscite chemical formula.
- Chemical formula of Sard- SiO 2Ulrich Henn and Claudio C.
- Chemical formula of Variscite- AlPO4 · 2(H2O)
Sard and Variscite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sard and Variscite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sard and Variscite Optical Properties during the identification of gemstone. Specific gravity of Sard is 2.42-2.58 whereas that of Variscite is 2.42-2.58.